<?php
require 'config.php';  

function similar($rgb1, $rgb2) {  
  $r1 = ($rgb1 >> 16) & 0xFF;  
  $g1 = ($rgb1 >> 8) & 0xFF;  
  $b1 = $rgb1 & 0xFF;  
  $r2 = ($rgb2 >> 16) & 0xFF;  
  $g2 = ($rgb2 >> 8) & 0xFF;  
  $b2 = $rgb2 & 0xFF;  
  return abs($r1 - $r2) < 10 && abs($b1 - $b2) < 10 && abs($g1 - $g2) < 10;  
}  

function getStart() {  
  global $image;  
  $width  = imagesx($image);  
  $height = imagesy($image);  
  for ($i = $height / 3; $i < $height / 3 * 2; $i++) {  
    for ($j = 0; $j < $width - 75; $j++) {  
      if (checkStart($i, $j)) {  
        $x = $i;  
        $y = $j + 37;  
      }  
    }  
  }  
  return array($x, $y);  
}  

function getEnd() {  
  global $image;  
  global $sx, $sy;  
  $l_r    = 0;  
  $cnt    = 0;  
  $width  = imagesx($image);  
  $height = imagesy($image);  
  for ($i = $height / 3; $i < $sx; $i++) {  
    $demo  = imagecolorat($image, 0, $i);  
    for ($l = 0; $l < $width; $l++) {  
      $c = imagecolorat($image, $l, $i);  
      if (!similar($c, $demo)) {  
        $r = $l;  
        while($r+1 < $width && !similar(imagecolorat($image, $r+1, $i), $demo)){  
          $r++;  
        }  
        if (abs(($l + $r) / 2 - $sy) > 20) {  
          if (!isset($mid)) $mid = ($l + $r) / 2;  
          if ($r - $l > BODY_WIDTH * 1.1){  
            if ($r <= $l_r) {  
              $cnt ++;  
              if ($cnt == 3) {  
                return [$i, round($mid)];  
              }  
            }  
            else {  
              $cnt = 0;  
            }  
            $l_r = $r;  
          }  
        }  
        $l = $r;  
      }  
    }  
  }  

  return [$sx - round(abs($mid-$sy)/sqrt(3)), round($mid)];;  
}  

$cheet = [  
  2829129, 2829129, 2829129, 2829129, 2829387, 2960716, 2960461,  
  2960463, 3026256, 3026256, 3092563, 3092563, 3158614, 3158615,  
  3224408, 3290202, 3356252, 3356252, 3356252, 3356767, 3357024,  
  3553376, 3618913, 3618913, 3553891, 3684707, 3750243, 3684706,  
  3684707, 3684707, 3684707, 3750243, 3618914, 3618913, 3684450,  
  3750243, 3750243, 3750243, 3750243, 3750243, 3684706, 3618913,  
  3618913, 3618913, 3684450, 3684706, 3684706, 3684450, 3684450,  
  3750243, 3750243, 3684450, 3684706, 3750243, 3618913, 3618913,  
  3618913, 3684448, 3749727, 3749727, 3749727, 3749727, 3749727,  
  3749470, 3749469, 3749469, 3749721, 3749720, 3749720, 3814998,  
  3814997, 3880534, 3880533, 3946835, 3881042  
];  

function checkStart($sx, $sy) {  
  global $cheet;  
  global $image;  
  for ($i = 0; $i < 75; $i++) {  
    $rgb = imagecolorat($image, $sy + $i, $sx);  
    if (!similar($rgb, $cheet[$i])) {  
      return false;  
    }  
  }  
  return true;  
}  

function screencap() {  
  ob_start();  
  system('adb shell screencap -p /sdcard/screen.png');  
  system('adb pull /sdcard/screen.png .');  
  ob_end_clean();  
}  

function press($time) {  
  system('adb shell input swipe 500 1600 500 1601 ' . $time);  
}  

for ($id = 0; ; $id++) {  
  echo sprintf("#%05d: ", $id);  
  // 截图  
  screencap();  
  // 获取坐标  
  $image = imagecreatefrompng('screen.png');  
  list($sx, $sy) = getStart();  
  list($tx, $ty) = getEnd();  
  if ($sx == 0) break;  
  echo sprintf("(%d, %d) -> (%d, %d) ", $sx, $sy, $tx, $ty);  
  // 图像描点  
  imagefilledellipse($image, $sy, $sx, 10, 10, 0xFF0000);  
  imagefilledellipse($image, $ty, $tx, 10, 10, 0xFF0000);  
  imagepng($image, sprintf("screen/%05d.png", $id));  
  // 计算按压时间  
  $time = pow(pow($tx - $sx, 2) + pow($ty - $sy, 2), 0.425) * PRESS_TIME;  
  $time = round($time);  
  echo sprintf("time: %f\n", $time);  
  press($time);  
  // 等待下一次截图  
  sleep(SLEEP_TIME);  
}
